FactsKing.com / Animal Facts / 8 Top Predators of Sea Otters that Eat Sea Otter Sea otters are sea mammals native to the eastern and northern parts of the North Pacific Ocean. 8.Seals have a gestation period of 12 months, and otters have a gestation period of about 60 to 86 days. Sea otters and seals are in many ways different, but are also similar. Polar bear cub Kaktovik, Alaska. Females are much smaller. Adults weigh up to 99 pounds and are the weasel family’s heaviest animals, but strangely the smallest of all marine mammals. Beavers and otters might occupy the same sorts of aquatic habitats, and their ranges often overlap, but they are completely different animals. The Steller sea lion (Eumetopias jubatus), also known as the Steller's sea lion and "northern sea lion", is a near-threatened species of sea lion in the northern Pacific.It is the sole member of the genus Eumetopias and the largest of the eared seals (Otariidae). There may be a small breeding colony of Stellers using near shore rocks in RNSP.
The MMPA gave the Department of Interior (DOI) management responsibility for polar bears, walrus, sea otters, manatees and dugongs. Even from a distance, it is straightforward to distinguish the two. Steller males are massive, the largest of the eared seals, weighing in at 1,200 lbs (0.5 metric ton) or greater. Among pinnipeds, it is inferior in size only to the walrus and the two species of elephant seals. If you spot an otter in the Chesapeake Bay, it’s a river otter, whereas if you spot one in Monterey Bay (especially in the water), the chances are high that it’s a sea otter. But upon closer inspection, you may wonder which animal you're actually pointing and grinning at: a seal or a sea lion. When comparing a sea lion vs. seal you can spot the difference a few ways, one of which is the lack or presence of an ear. Sea otters are mainly native to the northeastern seaboards of the Pacific Ocean, so they aren’t spotted in areas like the East Coast or the Gulf of Mexico. Currently the southern sea otter population is estimated at just above 3,000 animals. The largest species of sea lion, the Stellar sea lion, also has a noticable mane, and males of this species can reach 2200 pounds and 12 feet in length. They are the smallest mammals in the sea. The Marine Mammal Protection Act (MMPA) of 1972 gave NOAA Fisheries responsibility for the management and conservation of all but three species of marine mammals in Alaska. These are river otters. Surfing in front of waves or large whales seems to be a fun activity for sea lions. He’s trying to climb up the pipe!” It was then that the explainer in me wanted to jump in and say, actually, no. Seals and sea lions are mostly fish-eaters, although most of the species also eat squid, mollusks, crustaceans, marine worms, sea birds, and other seals. I, too, assumed that sea + otter = sea otter. They have different bodies, different diets and different roles in the ecosystem. California’s southern sea otter has been listed as a threatened species under the Endangered Species Act since 1977. 7.This is because they have flippers and also a streamlined body. Currently the southern sea otter population is estimated at just above 3,000 animals. "The Exxon Valdez oil spill of 1989 killed more than 1,000 sea otters in Prince William Sound because their fur was contaminated with oil. Sea lions gain speed by porpoising, gliding on the water's surface to minimize resistance. Hence, otters are closely related to these creatures. Seals and sea lions are right up there with otters and dolphins as some of the marine darlings that draw crowds of admiring fans to aquariums and beaches. 6.When comparing the swimming ability of both otters and seals, the latter ones are considered to be good swimmers. The ones that eat mostly fish specialize in oil-bearing species like eels, herrings, and anchovies because they swim in shoals and are easy to catch, and are good energy sources. In addition, sea lions have a loud bark and walk on their large rear flippers versus seals more wriggle on their belly and have smaller rear flippers. A sea otter!
"The problem with a sea otter's unique fur is it cannot get dirty, so they spend a lot of time grooming it to keep it clean," says Terri Williams, professor in the Department of Ecology and Evolutionary Biology at the University of California, Santa Cruz. But instead, I held back and listened to the conversation, thinking back to ten years ago or so when I first saw river otters in the ocean. Sea otters play a vital role in the health and stability of the nearshore marine ecosystem as a keystone species Sea Otter Facts. California’s southern sea otter has been listed as a threatened species under the Endangered Species Act since 1977.
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